Monitor



FIG. 1 is the front, right side perspective view of a monitor showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top, left side, rear perspective view thereof; and,

FIG. 5 is a bottom plan view thereof.

The pattern is partially shown across the bottom in FIGS. 1 and 2 for ease of illustration and it is understood to continue uniformly across the indicated surface. 

The ornamental design for a monitor, as shown and described. 